PR21-4-1.00A-XX-V

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Circuit breakers are safety devices designed to manage electrical circuits. They serve to protect a circuit from overloading, short-circuits and other conditions that can cause electrical shock, fire or other damage. The PR21-4-1.00A-XX-V is a type of circuit breaker used in applications such as residential houses, commercial and industrial buildings.

The PR21-4-1.00A-XX-V circuit breaker is a 4-pole device with an adjustable current rating from 1.0 to 20.0 A, and a voltage rating of 220–240 V. It is a manually operated device, meaning it must be manually reset after tripping due to an overload or short-circuit. In addition to the adjustable current rating, the PR21-4-1.00A-XX-V circuit breaker also has adjustable trip levels to provide varying protection levels.

The main function of the PR21-4-1.00A-XX-V circuit breaker is to protect a circuit from being overloaded or from encountering a short-circuit. This is done using a thermal-magnetic trip unit. In normal operation, current is monitored to ensure that the safe operating level for the circuit is not exceeded. If this level is exceeded, the trip unit will detect the surge in current and open the circuit to prevent damage or injury. This is typically done before the amperage rating is exceeded.

In the event of a short-circuit, the magnetic trip unit will detect the surge in current and instant.y open the circuit. If the short-circuit is severe enough, the trip unit will trigger at a lower current level than normal. By doing this, the circuit breaker provides additional protection against short-circuiting damage.

The PR21-4-1.00A-XX-V circuit breaker is designed to provide protection in residential applications, but can also be used in commercial and industrial settings. It can be used in a single or multi-pole arrangement depending on the requirements. The adjustable current rating and trip levels make it a versatile device that can be adapted to the specific application requirements.

In summary, the PR21-4-1.00A-XX-V circuit breaker is a versatile and cost-effective solution for protecting residential, commercial and industrial electrical installations. The adjustable current rating, trip levels, and manual reset capability make it suitable for a wide range of applications. It is an ideal choice for providing reliable and durable protection for electrical circuits.

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